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Finite-pulse waves for efficient suppression of evolving mesoscale dendrites in rechargeable batteries

Aryanfar, Asghar and Hoffmann, Michael R. and Goddard, William A., III (2019) Finite-pulse waves for efficient suppression of evolving mesoscale dendrites in rechargeable batteries. Physical Review E, 100 (4). Art. No. 042801. ISSN 2470-0045. doi:10.1103/physreve.100.042801.

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The ramified and stochastic evolution of dendritic microstructures has been a major issue on the safety and longevity of rechargeable batteries, particularly for the utilization of high-energy metallic electrodes. We analytically develop criteria for the pulse characteristics leading to the effective halting of the ramified electrodeposits grown during extensive timescales beyond inter-ionic collisions. Our framework is based on the competitive interplay between diffusion and electromigration and tracks the gradient of ionic concentration throughout the entire cycle of pulse-rest as a critical measure for heterogeneous evolution. In particular, the framework incorporates the Brownian motion of the ions and investigates the role of the geometry of the electrodeposition interface. Our experimental observations verify the analytical developments, where the dimension-free developments allows the application to the electrochemical systems of various scales.

Item Type:Article
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URLURL TypeDescription Paper
Aryanfar, Asghar0000-0002-8890-077X
Hoffmann, Michael R.0000-0001-6495-1946
Goddard, William A., III0000-0003-0097-5716
Additional Information:© 2019 American Physical Society. Received 16 July 2019; published 9 October 2019. The authors thank the Bill and Melinda Gates Foundation for financial support (Grant No. OPP1192374) and Bahçeşehir University for the BAP support. Additionally, the insightful discussions with Dr. Agustin Colussi (Caltech), Dr. Jaime Marian (UCLA), and Dr. Martin Bazant (MIT) are acknowledged.
Funding AgencyGrant Number
Bill and Melinda Gates FoundationOPP1192374
Bahçeşehir UniversityUNSPECIFIED
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Issue or Number:4
Record Number:CaltechAUTHORS:20191009-105620094
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:99188
Deposited By: Tony Diaz
Deposited On:09 Oct 2019 18:19
Last Modified:16 Nov 2021 17:44

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